| Summary: | 碩士 === 國立臺灣科技大學 === 機械工程系 === 95 === With the rapid advance of IC industry, the power dissipation of CPU increases significantly and generates a challenging task for thermal engineer. In addition the user’s requirement on reducing the computer noise has made the liquid cooling becoming a potential candidate for PC thermal management. Hence, a substantial need for high-performance small centrifugal pump is existed and becomes the goal of this research. In this study, a combined numerical effort executed by CFD code and electric engineering simulation software is applied to obtain the appropriate pump and motor designs, which is utilized to fabricate the prototype via CNC machine. Thereafter, the performances of prototypes are carried out in a test setup incorporated to meet the ANS test code. Furthermore, to obtain the design guideline, a comprehensive parametric study on the blade type, hub diameter, inlet area, and outlet areas is executed to identify the corresponding influences on pump performance. Also, the numerical outcomes of the associated flow field inside a small centrifugal pump are utilized for the flow visualization to identify the possibility of performance enhancement. In conclusion, this best prototype generated from these numerical and experimental results can meet the original design target for liquid cooling system. Also, several design guidelines are drawn for pump design engineers.
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